qt = oz ÷ 32 | qt → oz: oz = qt × 32
How Many Oz in a Quart?
There are exactly 32 US fluid ounces in 1 US liquid quart. The quart is one of the most practical mid-size volume units in the US customary system — it sits precisely halfway between a pint (16 oz) and a half gallon (64 oz). Understanding quarts makes it easier to navigate gallon-based conversions, since 4 quarts = 1 gallon = 128 oz.
You encounter quarts regularly in grocery stores — quart-sized containers of broth, cream, motor oil, and paint are standard product sizes. Knowing that 32 oz = 1 quart allows instant comparison and portion planning.
Oz to Quart Formula & Examples
Worked Examples
- 8 oz to quarts: 8 ÷ 32 = 0.25 qt (quarter quart)
- 16 oz to quarts: 16 ÷ 32 = 0.5 qt (half quart = 1 pint)
- 32 oz to quarts: 32 ÷ 32 = 1 qt
- 48 oz to quarts: 48 ÷ 32 = 1.5 qt
- 64 oz to quarts: 64 ÷ 32 = 2 qt (half gallon)
- 96 oz to quarts: 96 ÷ 32 = 3 qt
- 128 oz to quarts: 128 ÷ 32 = 4 qt (1 gallon)
To convert back from quarts to ounces, multiply by 32. See how quarts relate to gallons using the oz to gallon converter.
Oz to Quart Conversion Table
| Fluid Ounces (fl oz) | Quarts (qt) | Pints | Gallons |
|---|---|---|---|
| 8 oz | 0.25 qt | 0.5 pt | 0.0625 gal |
| 16 oz | 0.5 qt | 1 pt | 0.125 gal |
| 24 oz | 0.75 qt | 1.5 pt | 0.1875 gal |
| 32 oz | 1 qt | 2 pt | 0.25 gal |
| 40 oz | 1.25 qt | 2.5 pt | 0.3125 gal |
| 48 oz | 1.5 qt | 3 pt | 0.375 gal |
| 56 oz | 1.75 qt | 3.5 pt | 0.4375 gal |
| 64 oz | 2 qt | 4 pt | 0.5 gal |
| 80 oz | 2.5 qt | 5 pt | 0.625 gal |
| 96 oz | 3 qt | 6 pt | 0.75 gal |
| 112 oz | 3.5 qt | 7 pt | 0.875 gal |
| 128 oz | 4 qt | 8 pt | 1.0 gal |
| 192 oz | 6 qt | 12 pt | 1.5 gal |
| 256 oz | 8 qt | 16 pt | 2.0 gal |
Where the Quart Fits in the Volume System
The quart occupies a useful middle position in US liquid volume measurements. Here's a complete picture of where it sits:
├── 2 half gallons (64 oz each)
├── 4 quarts (32 oz each)
├── 8 pints (16 oz each)
└── 16 cups (8 oz each)
The quart's name derives from "one quarter of a gallon." This makes it easy to remember: 4 quarts = 1 gallon. Knowing this hierarchy allows you to navigate any US volume conversion without a calculator.
Oz and Quarts in Cooking & Purchasing
Soups and Stocks
Chicken broth and beef stock are commonly sold in 32 oz (1-quart) cartons. Many soup recipes call for 1–2 quarts of broth. Knowing 32 oz = 1 quart prevents unnecessary measuring — just grab one or two cartons.
Ice Cream and Dairy
Ice cream containers are traditionally measured in quarts (32 oz). A "half gallon" tub is 64 oz = 2 quarts. Knowing these conversions helps when scaling dessert recipes for parties.
Mixing Beverages
Cocktail and punch recipes scaled for a crowd often use quarts. For example, a recipe that makes "2 quarts" produces 64 oz — enough for approximately eight 8 oz servings.
For a broader perspective on gallon-based math, visit our blog post: How Many Oz in a Gallon — Complete Reference